Bitcoin RPC Endpoints & API Access | OnFinality

Bitcoin is the world's first decentralized digital currency, enabling peer-to-peer value transfer without intermediaries. For developers building on Bitcoin, accessing a reliable Bitcoin RPC endpoint is essential for reading blockchain data, submitting transactions, and powering applications like wallets, DeFi protocols, analytics tools, and backend services.

What is a Bitcoin RPC Endpoint?

A Bitcoin RPC (Remote Procedure Call) endpoint is a network URL that allows applications to communicate with a Bitcoin node. Using the JSON-RPC protocol, developers can call methods such as getblockchaininfo, getrawtransaction, or sendrawtransaction to interact with the Bitcoin blockchain. OnFinality provides managed Bitcoin RPC endpoints, eliminating the need to run and maintain your own node.

Why Use OnFinality for Bitcoin RPC?

Running a Bitcoin node requires significant storage (over 500 GB for the full blockchain), bandwidth, and ongoing maintenance. OnFinality offers a scalable alternative with:

• Managed Infrastructure: No need to sync or maintain nodes.
• Archive Access: Query historical state data for deep analytics.
• Observability: Monitor request volume, errors, and latency through the OnFinality dashboard.
• Scalability: Plans that grow with your application from testing to production.

Key Features of OnFinality Bitcoin RPC

• Network: Bitcoin Mainnet
• Protocol: Bitcoin JSON-RPC
• Transport: HTTP
• Advanced Access: Archive data available
• Common Use Cases: Production dApps, wallets, DeFi products, analytics tools, games, bots, and backend services

How to Connect to Bitcoin via OnFinality

1. Create or sign in to your OnFinality account.
2. Select Bitcoin from the supported networks list.
3. Create an API endpoint (or deploy a dedicated node if supported).
4. Test your endpoint with a simple RPC call, e.g., getbestblockhash.
5. Monitor usage and errors before moving critical traffic.

Bitcoin RPC Use Cases

• Wallets: Check balances, build transactions, and broadcast.
• DeFi: Integrate with Bitcoin-based protocols like RSK or Stacks.
• Analytics: Extract on-chain data for market analysis or compliance.
• Backend Services: Automate payments, invoicing, or settlement flows.

Public vs. Private Bitcoin RPC

Public Bitcoin RPC endpoints are convenient for quick tests but often lack reliability, rate limits, and support. OnFinality's authenticated endpoints provide stable access, clearer usage limits, request analytics, and a path to higher-capacity infrastructure for production workloads.

Get Started with Bitcoin RPC on OnFinality

Ready to build on Bitcoin without the overhead of node management? Sign up for OnFinality and get your Bitcoin RPC endpoint in minutes.